This name is a synonym of Symphyotrichum anomalum G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 5F185A13-FA29-43AF-A805-DEA81F14A282) with original publication details: Rhodora 51 119 1949.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23070-2.
This name was in version 1 of The Plant List, record gcc-130493.